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From: Dmitry Rokosov <ddrokosov@salutedevices.com>
To: <neil.armstrong@linaro.org>, <jbrunet@baylibre.com>,
	<mturquette@baylibre.com>, <sboyd@kernel.org>, <robh+dt@kernel.org>,
	<krzysztof.kozlowski+dt@linaro.org>, <khilman@baylibre.com>,
	<martin.blumenstingl@googlemail.com>
CC: <kernel@salutedevices.com>, <rockosov@gmail.com>,
	<linux-amlogic@lists.infradead.org>, <linux-clk@vger.kernel.org>,
	<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>, Dmitry Rokosov
	<ddrokosov@salutedevices.com>
Subject: [PATCH v3 2/4] arm64: dts: amlogic: a1: declare cpu clock controller
Date: Wed, 15 May 2024 22:13:51 +0300
Message-ID: <20240515191405.25395-3-ddrokosov@salutedevices.com>
In-Reply-To: <20240515191405.25395-1-ddrokosov@salutedevices.com>
References: <20240515191405.25395-1-ddrokosov@salutedevices.com>
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The Amlogic A1 SoC family relies on the CPU clock controller to generate
CPU clocks, serving a crucial function. It has 4 inputs: main
oscillator, fixed clocks and system pll.

Signed-off-by: Dmitry Rokosov <ddrokosov@salutedevices.com>
---
 arch/arm64/boot/dts/amlogic/meson-a1.dtsi | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/arch/arm64/boot/dts/amlogic/meson-a1.dtsi b/arch/arm64/boot/dts/amlogic/meson-a1.dtsi
index feed2bd7ae48..afb5d7361177 100644
--- a/arch/arm64/boot/dts/amlogic/meson-a1.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-a1.dtsi
@@ -3,6 +3,7 @@
  * Copyright (c) 2019 Amlogic, Inc. All rights reserved.
  */
 
+#include <dt-bindings/clock/amlogic,a1-cpu-clkc.h>
 #include <dt-bindings/clock/amlogic,a1-pll-clkc.h>
 #include <dt-bindings/clock/amlogic,a1-peripherals-clkc.h>
 #include <dt-bindings/clock/amlogic,a1-audio-clkc.h>
@@ -94,6 +95,19 @@ soc {
 		#size-cells = <2>;
 		ranges;
 
+		clkc_cpu: clock-controller@fd000000 {
+			compatible = "amlogic,a1-cpu-clkc";
+			reg = <0 0xfd000080 0 0x8>;
+			#clock-cells = <1>;
+
+			clocks = <&clkc_pll CLKID_FCLK_DIV2>,
+				 <&clkc_pll CLKID_FCLK_DIV3>,
+				 <&clkc_pll CLKID_SYS_PLL>,
+				 <&xtal>;
+			clock-names = "fclk_div2", "fclk_div3",
+				      "sys_pll", "xtal";
+		};
+
 		spifc: spi@fd000400 {
 			compatible = "amlogic,a1-spifc";
 			reg = <0x0 0xfd000400 0x0 0x290>;
-- 
2.43.0